Parameter Identification and Intersample Output Estimation for Dual-Rate Systems

Authors:
F. Ding;P. X. Liu;H. Yang
Affiliations:
Control Sci. & Eng. Res. Center, Jiangnan Univ., Wuxi;-;-
Venue:
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Year:
2008

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Abstract

In this paper, we derive a mathematical model for dual-rate systems and present a stochastic gradient identification algorithm to estimate the model parameters and an output estimation algorithm to compute the intersample outputs based on the dual-rate input-output data directly. Moreover, we investigate convergence properties of the parameter and intersample estimation, and we test the proposed algorithms with example systems, including an experimental water-level system.